friendliness vs temperament

friendliness and temperament both are nouns.

Word	Noun	Adjective	Verb	Adverb
friendliness	Yes	No	No	No
temperament	Yes	No	No	No

As nouns, temperament is a hypernym of friendliness; that is, temperament is a word with a broader meaning than friendliness:

Other hypernyms of friendliness include disposition.

friendliness (noun)	temperament (noun)
a friendly disposition	an adjustment of the intervals (as in tuning a keyboard instrument) so that the scale can be used to play in different keys
a feeling of liking for another person; enjoyment in their company	your usual mood
	excessive emotionalism or irritability and excitability (especially when displayed openly)